EXPERIMENTAL INVESTIGATIONS OF THE ENERGY AND ENVIRONMENTAL INDICES OF OPERATION OF A LOW-CAPACITY COMBINED GAS PRODUCER AND HOT-WATER BOILER

It has been shown that the introduction of combined gas producers and boilers on renewable energy sources is a pressing issue. A structural diagram of a low-capacity combined gas producer and boiler on renewable energy sources has been given; a bench and procedures for investigation and processing of results have been developed. Experimental investigations of the energy and environmental indices of a 40-kW combined gas producer and hotwater boiler burning wood have been carried out. Results of the experimental investigations have been analyzed. Distinctive features have been established and a procedure of thermal calculation of the double furnace of a lowcapacity combined gas producer and boiler burning solid fuel has been proposed. The calculated coeffi cients of heat transfer from the gases in the convection bank have been compared with the obtained experimental results. A calculation dependence for the heat transfer from the gases in convection banks of low-capacity hot-water boilers has been proposed. The quantities of harmful emissions from the combined gas producer and boiler on renewable energy sources have been compared with the existing Ukrainian and foreign standards. It has been established that the environmental effi ciency of the boiler under study complies with most of the standard requirements of European countries.
   
Author:  L. A. Bodnar, D. V. Stepanov, and A. N. Dovgal′
Keywords:  combined gas producer and boiler, double furnace, coeffi cient of heat transfer from the gases, correction factor, environmental indices, nitric oxide, carbon oxide
Page:  962